I can't get in game

Hello everyone.

I'm Ulv Sitka on League. And lately, I can't get to play League. So basically the bug goes like this: I create a game, pick my champ. And then when the game should open another window to load the game, it doesn't and just ask me to "reconnect" as If I was already in game, so I tried clicking on the button but nothing works. My connexion is fine and I doubt it's about that.

Can someone help me fix this, please?